Using the unitary method:
30% of 50
10% of 50 = 50/10
= 5
3 x 5 (which is 10%) = 15
Alternatively, if you have a calculator, you can always try
0.3 x 50 = 15
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It would be $150. To find this, first take 10% of 500, which would be 50. Then triple that number to find what 30% would be, which is $150 off.
40% off $50 = $50 - (0.4 x $50) = $30
what is the answer of 30 percent of 50
$30 off, which makes the item $20.
Multiply by 0.3. Example 30%of 100. =0.3*100=30. 30% of 50= 0.3*50=15